Thai rice / Variety reference

RD43

กข43

Fit a short crop into the whole farm calendar.

What this means for your programme

Compare the planned harvest with nearby fields and arrange harvest access. The source flags bird and rodent exposure where maturity differs greatly, and lodging at high fertilizer rates.

Planning interpretation by soil.ag, based on the profile below.

Where it fits

Irrigated areas with short planting windows, including flood-prone calendars and weedy-rice problems; this is not evidence of submergence tolerance.. Short wet-direct-seeded duration and soft mildly aromatic grain.

What to watch

High fertilizer rates can cause lodging; blast susceptibility is noted for Phitsanulok. Differing maturity dates in neighboring rice can increase bird/rodent exposure.

These are historical variety descriptions. Check local scouting and current advice; a resistance claim does not rule out a problem in your field.

Use the calendar correctly

95 days. Published for wet direct seeding.

Record sowing, transplanting and observed stages separately so comparisons use the same clock.

What does the yield reference tell us?

Official release-profile yield reference; site, season, input treatment and grain moisture are not fully specified here. Not a national average, field forecast or promised yield.

A yield figure alone does not identify the right fertilizer rate. Compare records with their soil, water, inputs and harvest basis attached.

Can I use GDD for this variety?

No reviewed simple harvest-GDD target is published here. A duration in days cannot be converted into a universal heat-unit requirement without temperature data and a defined starting point.

Read the crop-stage guide →

Reference: Thai Rice Department · RD43 ↗. Official profile checked 27 September 2026.

Before choosing the next fertilizer split

Put previous applications, soil results, water management and crop observations beside the intended growth-stage window.

Review rice nitrogen timing →
A 30-minute Hypha demo

Put the variety in field context.

Bring your crop programme or a few field records. We’ll show the software, confirm coverage and explain the cost of getting started.

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